Pole.



PATENTED JUNE 9, 1908.

R. S. ORR.

POLE.

APPLICATION FILED 0019,1907.

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ROBERT S. ORB, OF ALLEGHENY, PENNSYLVANIA.

POLE.

Specification of Letters Patent.

Patented June 9, 1908.

Application fi1ed.0ctober 9, 1907. Serial No. 396,640.

T 0 all whom it may concern:

Be it known that I, ROBERT S. ORR, a citizen of the United States, residing at Allegheny, in the county of Allegheny and State of Pennsylvania, have invented certain new and useful Improvements in Poles, of which the following is a specification, reference be ing had therein to the accompanying drawing.

My invention refers to improvements in poles for electric lights or for other similar use and relates particularly to the construc tion employing a tubular main body portion of concrete or cement or other similar mate rial, mounted on a supporting base and provided with a terminal cap or socket adapted to receive the lamp-supporting bracket or extension.

A feature of novelty and advantage of the device is that the hollow middle portion of the post is adapted to receive the current conducting wires for the lamp, and its shell is reinforced and strengthened by connecting tension members as rods or bolts extending from the upper portion of the base to the lamp-supporting cap, thereby securing great rigidity, lightness and efficiency.

In the drawings, Figure 1 represents a vertieal sectional view of a complete pole provided with the supported lamp. Fig. 2 is a cross sectional view on an enlarged scale, indicated by the line II. II. of Fig. 1. Fig. 3 is a sectional detail view illustrating a modification.

2 is the base of cast iron or other suitable material and of convenient form to be mounted upona foundation 3, usually on the same level with the ground, to which foundation the base 2 is securely held by bolts l engaging base flange 5. At its upper end the base 2 is provided with a flange 6, preferably extending inwardly and giving a box form to the upper portion of the base which is preferably tapered upwardly as shown, and said flange 6 serves as a supporting face for the main body section 7 of the )ole.

1 The body section 7 consists of a shell, preferably cylindrical, made of concrete, cement, or other suitable hardening material, having an interior opening 8 extending throughout from top to bottom, the wall of the shell being of suitable thickness to give strength and the desired rigidity, as shown by the cross section of Fig. 2.

9 is a socket cap or coping set upon the upper end of hollow section 7 and adapted to receive and hold the lamp-su'pporting-extension or bracket 10 and lamp 11 at its outer extremity. Bracket 10 is connected with or attached to cap 9 in any suitable or convenient manner as by screwing it thereinto as shown and the bracket may be conveniently made of pipe sections which are readily adapted to receive and carry the conducting wires of the lamp. The cap or end member 9 may be of any design or size desired for the purpose intended and may be elongated to any extent and of suitable strength to support the attached bracket or other additional element. It will be obvious that the cap may also be used for attachment of span wires or cross arms, or for any other similar purpose. The cap 9 and base 2 are connected by a series of strengthening rods or tension members 12 joined with the cap 9 at its base as indicated at 13, or in any other suitable manner, and with flange 6 of base 2 by nuts or otherwise, said tension rods 12 extending upwardly through the walls of the shell 7 as clearly shown. By this construction the said walls are greatly strengthened and braced, the cement or concrete being maintained in its original position against fracture or movement due to the various strains, while the entire structure including the cap 9 and its supported lamp bracket is rigidly connected and held as a permanent structure.

In Fig. 3 I have shown a detail view illustrating a spacing tying or holding device 14 which may be a ring embedded in the concrete and embracing the rod or tension members 12. One or more of such spacers may be used throughout the length of the pole and serve to maintain the tension members in correct positions. In manufacturing the section 7 it may be readily molded by a suitable mold and core, providing a somewhat tapering finished exterior and interior, with the reinforcing rods 12 embedded therein. As thus made the various parts constituting the main pole section may be readily connected together and erected in place and will be found to provide. a strong permanent pole, well adapted to the objects in view.

The device is simple in construction and cheap to manufacture, will withstand the action of the elements, and may be made in various sizes and designs as to length, diameter and form of cross section within the province of the designing engineer, while various other changes or variations may be made by the skilled mechanic.

What I claim is:

l. A pole comprising a base, a bracket supporting cap having a bracket socket, an intervening body portion of concrete abutting against said base and cap respectively and tension members connected with the cap and base and passing through the concrete, substantially as set forth.

2. A pole comprising a base, a bracketsupporting cap having a bracket socket, an intervening hollow body portion of concrete abutting against said base and cap respectively and tension members connected with the cap and base and passing through the concrete, -substantially as set forth.

3. A pole consisting of a supporting base adapt-edto be secured to a foundation, a hollow ole member of concrete supported ontlie I ase and provided with a terminal cap having a socket adapted to support a lamp bracket, and tension members connected with the base and cap and passing through the walls of the hollow pole member, substantially as set forth.

4. The combination of a base having an upper flanged supporting portion, a hollow cy indrical pole member of concrete mounted on said base and provided with a terminal cap having a bracket-attaching socket and metallic tension members extending through the wall of the pole member and connected with the flange of the base and with the bottom portion of the cap, substantially as set forth.

5. In a pole, the combination of a tapering tubular body portion of concrete, a supporting base at the lower end of the pole, a supplemental bracket-supporting element constituting a top terminal at the other end of the pole, and tension bars extending through the wall of the tubular body portion and through the base and said supplemental terminal element respectively and secured thereto, substantially as set forth.

6. As an article of manufacture, a hollow pole consisting of a tubular body of concrete provided with a terminal lamp supporting cap at one end having means for attachment of' a lamp bracket, and reinforcing rods connected with the cap extending through the wall of the pole and beyond its other end for attachment to a supporting base, substantially as set forth.

7. In a pole, the combination of a longi tudinal body of concrete of a cross section adapted to withstand lateral strain, a terminal cap adapted to fixedly support a supplemental upper structure, and a plurality of reinforcing tension members connected with said terminal cap, passing through the concrete, and extending beyond the other end thereof for attachment to a base, substantially as set forth.

In testimony whereof I afiix my signature in presence of two witnesses.

ROBERT S. ORR.

IVitnesses O. M. CLARKE, CHAS. S. LEPLEY. 

